MICROWAVE: effectiveness of different transmission microwave is a wireless data transmission which enables information or data to travel through it using two methods, method 1 is a famous terrestrial method which uses two microwave transmission towers with a very clear line of sight and with no interfaces like mountains etc. it is also often used to ensure privacy to the user, of course if the microwave is going to use the two towers as a transmission then they would have to be fast so that is why their frequency data is from 4 GHZ and going up all the way to 23 GHZ and talking about the speed it is 1 megabyte per second all the way to 10 Mbps. The second method is a bit the same as method 1 but this is more high tech and I guess you could say more terrestrialistic since it uses a space satellite to transmit data or information from space down to the location of the receiver, the satellite orbits 22,300 miles above earth. Then that’s when the station send information or data’s to and from the satellite ranging from 11 GHZ and 14 GHZ and with the speed of 1 megabyte to 10 megabytes per seconds. But the satellite method is in comparison to the towers method I have to admit the transmission tower is faster and reaches a longer and shorter distance than the satellite but the towers can be interfaced easily by mountains or anything else.
Infrared: effectiveness of different transmission infrared is another type wireless transmission media that transmits data signals through lasers, however the laser that the infrared lets out or transmits can’t go through obstacles so it can be easily interrupted or interfaces by objects, it is also inhibited to light. One type of method that the infrared uses to transmit data or information is a point to point system, which entails a laser data transmission between two lines limited to a line of sight range. This method is very conductive to the threats of privacy and eavesdropping. Another very useful and helpful way of getting somewhere is the broadcast system it is a reflective material or a transmission unit that amplifies and retransmits a data signal to disperse the signal to several other units so that they are able to receive it too as well as the first receiver. The speed of the infrareds transmission is 1 Mbps and increasing, its frequency is 100 GHZ to 1,000 THZ.
Effectiveness of different transmission Serial transmission Bits are transmitted to location one bit at a time through a single wire this is called a serial transmission. This transmission is only used in occasion where the location is a very long distance so by using the serial transmission the data shall be delivered their one bit at a time, it might be slow but it is efficient enough that it transmits the data there. It is normally used to transmit data to different computers or to an external device that is at a long distance to the sender.
Coaxial: Effectiveness of different transmission Coaxial is a device which is used to connect to telecommunication devices which currently and always use high-frequency and broadband connections from networks or the broadband network etc. This is also a type of cable which has four components listed below:
- Copper Core
- Outer Plastic Sheath
- Braided Copper Shielding
- White Polythene Inner Insulator (dielectric)
On the other cables the recent braided copper shield surrounds the insulator for fault protection and etc, this shield which is also known or also is or as a screen blocks electromagnetic interference. This cable is also commonly used by all end users to currently carry radio frequencies and also television signals and as well as it has a much greater capacity than a standard copper wire so it is currently efficient for all end users. There are variety and different types of coaxial cable, such as the very thin but not too thin Ethernet (10 base 2) which is used for networking at 10Mbps up to about 200 meters, and also the thick Ethernet and the amateur (ham) radio. The thick Ethernet (10 base 5) is used as the thin Ethernet but the distance is at 500 meters.
Optical Fibre : Eeffectiveness of different transmission Optical Fibre: this is a device that uses light for data transferring. The most commonly used optical fibre is the semi-conductor such as light emitting diode and laser diode. LEDs or Laser generate small pulses and then send them down the fibre which is a small thin stick of glass. At the other end the Photodiodes detect the small pulses. This device works at very high speeds, up into gigabytes. Optical fibre is capable of sustaining high transmission rates which is why it is used for broadband applications such as music, video and voice. Unlike copper, this device is not affected by stray electromagnetic interference and can be manufactured into single mode and multimode, single mode is used for long distances up to 3km carrying a single beam of light and the multimode is used for short distances up to 2km carrying multiple numbers of light beams which means more data.
UTP & STP: Effectiveness of different transmission UTP & STP both these two stand for unshielded and shielded twisted pair which uses copper wires. The core of these two is copper therefore this is a very good conductor and it is also easy to work with. In these two cables, the single wires are twisted to cut out crosstalk which is when they intermingle with each other. The STP cable has a shield round it which is a metallic coated plastic foil and is within the plastic sheath that is used block electromagnetic interference. These two devices work at 10 gigabytes and are used for network connection, to send and receive data. As UTP has no shield it is vulnerable to radio frequency and electromagnetic interference.
Effective different of transmission methods networks rushes mountains of data through transmission lines at remarkable rates, but the network is only as strong as its infrastructure. Unshielded twisted pair (UTP) is a very popular type of cable that basically consists of two unshielded wires twisted around each other. It is used for LANS (Local Area Networks) and telephone connections, mainly because it is very cheap. Shielded twisted pair (STP) is basically a type of copper telephone wiring in which each of the two copper wires that are twisted together are coated with an insulating coating that functions as a ground for the wires. Additionally, the extra covering in shielded twisted pair wiring basically protects the transmission line from electromagnetic interference leaking into or out of the cable.
by
a7mad007 (student)
